Sam Coupé

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The Sam Coupé is an 8-bit home computer originally released in 1989. Marketed as a logical upgrade from the ZX Spectrum with compatible modes it has an RGB output making it potentially ideal for use with the XRGB or OSSC upscalers.

Contents

Models

There was only a single revision board produced.

Important Notes

The SCART socket on the back of the SAM Coupé has a non-standard pin-out as it also has 5V and 12V inputs, TTL level output and a lightpen connection [1].

Pin Signal Pin Signal
1 AUDIO OUT RH 2 SPEN (Lightpen)
3 AUDIO OUT LH 4 AUDIO EARTH
5 BLUE EARTH 6 BLUE TTL OUT
7 BLUE LIN. OUT 8 RED TTL OUT
9 GREEN EARTH 10 GREEN TTL OUT
11 GREEN LIN. OUT 12 5V POWER IN
13 RED EARTH 14 CSYNC EARTH
15 RED LIN. OUT 16 CSYNC
17 C VID EARTH 18 12V POWER IN
19 C VID OUT 20 BRIGHT TTL OUT
21 GND.

Modifications

When using an RGB cable there is a lot of reflection on the picture, the fix is a to remove inductor L5 from the main board and replace it with a wire link [2].

XRGB-3 Specific settings

Not tested.

XRGB-Mini Specific settings

Not tested.

OSSC Specific settings

No changes from default settings.

External Links

[3] World of SAM software archive and community forum

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